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CBSE Class 7 Answered

What is additive identity for integer? 
Asked by Parket | 03 Nov, 2014, 09:50: PM
answered-by-expert Expert Answer
A d d i t i v e space i d e n t i t y space o f space a space n u m b e r space i s space a space n u m b e r space w h i c h space w h e n space a d d e d space t o space i t space g i v e s space t h e space s a m e space n u m b e r. L e t space minus 5 space b e space a n space i n t e g e r. L e t space y space b e space t h e space a d d i t i v e space i d e n t i t y space f o r space i n t e g e r s. T h e n comma space minus 5 plus y equals minus 5 rightwards double arrow minus 5 plus y plus 5 equals minus 5 plus 5 rightwards double arrow y plus 0 equals 0 rightwards double arrow y equals 0 T h u s comma space 0 space i s space t h e space a d d i t i v e space i d e n t i t y space f o r space i n t e g e r s.
Answered by Vimala Ramamurthy | 04 Nov, 2014, 09:24: AM

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